package cn.itcast.lock;

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class MySevice {
    private Lock lock = new ReentrantLock();
    public void testMethod()
    {
        lock.lock();
        for(int i=0;i<5;i++)
        {
            System.out.println(Thread.currentThread().getName()+"__"+i);
        }
        lock.unlock();
    }
}